The Compact Ball Head is strong enough to take 35mm SLR cameras with medium lenses, and light medium format cameras. It has a single indexed "ratchet" locking knob for 360? pan and +90? -90? tilt movements. Head to tripod attachment is 3/8" female. All aluminium construction and black finish. Equipped with a quick release 200PL camera plate system with a secondary safety catch. Camera plate has 1/4? male thread. Optional Plates: 200PL-38, 200PLARCH-14, 200PLARCH-38